component
ESD5471S
Public Made by Adomby adom
UMW ESD And Surge Protection (TVS/ESD), SOD-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownESD5471S
UMW · ESD And Surge Protection (TVS/ESD) · SOD-523
ESD5471S from UMW, in a SOD-523. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Pin1 | passive | One terminal of the bi-directional TVS, rated for a reverse stand-off voltage of ±5V max and protecting the line from ESD, EFT and surge events. |
| 2 | Pin2 | passive | The other terminal of the bi-directional TVS, rated for a reverse stand-off voltage of ±5V max and protecting the line from ESD, EFT and surge events. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOD-523 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VRWM | -5 | 5 | V | 4 | ||
| Reverse leakage current | IR | 1 | µA | VRWM=5V | 4 | ||
| Peak pulse power | PPK | 72 | W | tp=8/20µs | 2 | ||
| Peak pulse current | IPP | 6 | A | tp=8/20µs | 2 | ||
| ESD according to IEC61000-4-2 air discharge | VESD | -30 | 30 | kV | IEC61000-4-2 air discharge | 2 | |
| ESD according to IEC61000-4-2 contact discharge | VESD | -30 | 30 | kV | IEC61000-4-2 contact discharge | 2 | |
| Junction temperature | TJ | 125 | °C | 2 | |||
| Operating temperature | TOP | -40 | 85 | °C | 2 | ||
| Lead temperature | TL | 260 | °C | 2 | |||
| Storage temperature | TSTG | -55 | 150 | °C | 2 | ||
| Clamping voltage 1) | VCL | 12 | V | IPP=16A, tp=100ns | 4 | ||
| Dynamic resistance 1) | RDYN | 0.28 | Ω | TLP Z0=50Ω, tp=100ns; calculated from 4A to 16A | 4 | ||
| Junction capacitance | CJ | 9 | pF | VR=0V, f=1MHz | 4 |
CAD (KiCad official)
- Symbol:
ESD5471S - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
esd5471s-etched.step/esd5471s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd5471s.step/esd5471s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (9 pp, sha256
1adc0b69d7e14a4b, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).